The Ngorongoro crater, at 2286m above sea level, is the largest unbroken caldera in the world. Surrounded by very steep walls rising 610m meters from the crater floor, this natural amphitheatre measure 19.2 km in diameter and 304 q km in area.
It is home to up to 30,000 animals ,almost half being wildebeest and zebra.buffalo,elephant,hippo,hyena,jackal,lion,ostrich,serval,warthog,bushbuck,eland hartebeest ,reedbuck ,waterbuck and huge herds of both Thomson`s and grant`s gazelle are easily seen on the crater floor.
Thanks to anti-poaching patrols, the crater is now one of the few places in Eastern Africa where visitors can be certain of seeking black rhino, with the number now approaching 25.Leopard may be occasionally seen in the trees of the forest surrounding the crater while cheeter are also present but rarely seen.
Large herds of giraffe live on the rim of the crater and will be seen on the drive to Olduvai George and the Serengeti.